*{
			margin: 0;
			padding: 0;
		}
 body{
 	background: rgba(249, 249, 249, 1.0);
 }
		.nav{
			width: 100%;
			display: flex;
			background: rgba(0, 0, 0, 0.3) ;
			align-items: center;
			justify-content: center;
			position: sticky;
			z-index: 20;

		}
		.banner{
			margin-top: 5px;
			margin-left: -120px;
			margin-right: 10px;
			
		}
		.nav-center{
			display: flex;
			align-items: center;
			justify-content: center;
			padding: 0 20px;
			
		}
		.nav-center a{
			text-decoration: none;
			color: white;
			font-size: 20px;
			padding: 17px;
			position: relative;
		}
		.nav-center span{
			width: 30px;
			position: absolute;
			bottom: 7px;
			border: 2px solid white;
			margin-left: 25px;
			display: none;
		}
		.item-on span{
			display: block;
			margin-left: 3px;
		}
		.nav-center a:hover span{
			display: block;
		}
		/*二级导航*/
			.Invisibility{
			    width: 100vw;
			    position: absolute;
			    top: 61px;
			    left: -400px;
			    background-color: rgba(0, 0, 0, 0.5);
			    display: none;
			}
			.subnav{
			    width: 1200px;
			    display: flex;
			    flex-flow: wrap row;
			    margin: 0 auto;
			}
			.subtag{
			    width: 25%;
			    box-sizing: border-box;
			    display: flex;
			    flex-flow: wrap column;
			    justify-content: center;
			    align-items: center;
			    color: #fff;
			    font-size: 18px;
			    line-height: 30px;
			    margin: 10px 0px;
			}
/*	背景图片	*/
.bannerS{
	width: 100%;
	background: url(http://www.buchouyang.com/img/s-banner.d941220d.png) center;
	height: 330px;
	position: relative;

}
.bantie{
	position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    bottom: 0;
}
.bancon{
	width: 1200px;
    margin: 0 auto;
}
.bancon .banner-title{
	line-height: 80px;
    font-size: 50px;
    color: #fff;
    font-weight: 500;
}
.bancon .banner-info{
	color: hsla(0, 0%, 100%, .9);
    font-size: 30px;
}
/*下部分*/
.detail-wrap{
	padding-bottom: 44px;
    background: #f9f9f9;
}
.detail-title{
	width: 1200px;
    margin: 0 auto;
}
.content{
	padding-bottom: 44px;
    background: #f9f9f9;
    width: 100%;
}
.content>div{
	width: 1200px;
	margin: 0 auto;
}
.contentPage{
	color: rgba(0, 0, 0, 0.5);
    font-size: 14px;
    height: 54px;
    line-height: 54px;
}
.contentPage span:nth-child(2){
	color: rgba(0, 0, 0, 0.65);
}
.clearfix::after{
	content: '';
	display: block;
	clear: both;
}
.content-left{
	box-sizing: border-box;
    padding: 0 30px 40px 30px;
    width: 1200px;
    background: #fff;
    box-shadow: 0 0 16px 0 rgba(0, 0, 0, .1);
    border-radius: 2px;
    min-height: 586px;
}
.content-left-title{
	padding: 40px 0 30px 0;
    color: #000;
    font-size: 30px;
    font-weight: 500;
    text-align: center;
}
.content-left-text img{
	width: 100% !important;
    height: auto !important;
}